火炸药学报2017，Vol.40Issue(5)：56-59,68,5.DOI:10.14077/j.issn.1007-7812.2017.05.010
表面活性剂对HMX基PBX性能的影响
Effect of Surfactant on Properties of HMX-based PBX
摘要
Abstract
HMX-based PBXs were prepared by solution-water suspension method using F2602 as binder and Span-80,Tween-80,PVA and dextrine as surfactants.The characterization and thermal analysis of HMX-based PBXs were performed by scanning electron microscope (SEM),X-ray diffractometer (XRD) and differential scanning calorimeter (DSC) and their impact sensitivities were tested.Results show that the crystal structure of HMX after coating with surfactants does not change.When Span-80 is used as surfactant,HMX-based PBX obtained by coating has the smoothest surface and dense coating and has no obvious external leakage pheomenon.The apparent activation energies of the HMX based PBX obtained with Span-80,Tween-80,PVA and dextrin as surfactant are 438.05,217.74,406.64 and 356.14kJ/mol,and are reduced by 35.52,255.83,66.93,117.43kJ/mol respectively compared to samples with no surfactant.In which the critical temperature of thermal explosion of HMX-based PBX with Span-80 as surfactant increases by about 1 ℃,showing that it has no obvious effect on the stability of PBX,and the characteristic drop height of impact sensitivity increases by 40.76％ from 44.9 cm to 63.2 cm.关键词
溶液-水悬浮法/表面活性剂/HMX基PBX/Span-80/Tween-80Key words
solution-water suspension method/surfactant/HMX-based PBX/Span-80/Tween-80分类
军事科技引用本文复制引用
侯聪花,刘志强,贾新磊,张园萍,张诗敏..表面活性剂对HMX基PBX性能的影响[J].火炸药学报,2017,40(5):56-59,68,5.基金项目
国家安全重大基础研究项目 （）
